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Preparation and Properties of Transparent Ultrathin Lanthanide‐Complex Films
Author(s) -
Li Yali,
Xu Yang,
Wang Yige
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201601189
Subject(s) - lanthanide , luminescence , hydroxide , materials science , layer (electronics) , selectivity , absorption (acoustics) , fluorescence , morphology (biology) , deposition (geology) , analytical chemistry (journal) , nanotechnology , chemical engineering , ion , chemistry , inorganic chemistry , optoelectronics , optics , chromatography , organic chemistry , paleontology , physics , engineering , sediment , biology , composite material , genetics , catalysis
Highly transparent ultrathin films (UTFs) based on alternative layer‐by‐layer assembly of Eu‐ and Tb‐based lanthanide complexes (LCs) and Mg–Al‐layered double hydroxide (LDH) nanosheets are reported herein. UV–visible absorption and fluorescence spectroscopy showed an orderly growth of the two types of ultrathin films upon increasing the number of deposition cycles. AFM and SEM measurements indicate that the films feature periodic layered structures as well as uniform surface morphology. Luminescent investigations reveal that (LCs/LDH) n UTFs can detect Fe 3+ with relative selectivity and high sensitivity (Stern–Volmer constant K SV =8.43×10 3 L mol −1 ); this suggests that (LCs/LDH) n UTFs could be a promising luminescent probe for selectively sensing Fe 3+ ion.